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Case Closure Summary P e 2 <br /> Leaking Underground Fuel Storage Ta 'rogram <br /> III Release and Site Characterization Information (continued) <br /> Maximum Documented Contaminant Concentrations --Before and After Cleanup <br /> Contaminant Soil (ppm) Water (ppm) Contaminant Soil (ppm) Water (ppm) <br /> Before After Before After Before After Before After <br /> TPH (Gas) 28000 <1 <,05 <.05 Ethylbenzene 260 <,005 <.0005 <.0005 <br /> TPH (Diesel) Xylene 1400 <,005 .0007 <.0005 <br /> Benzene <2.5 <.005 <.0005 <.005 TCE <br /> Toluene 380 <.005 <,0005 <.005 PCE <br /> MTBE <.003 <br /> Comments: SOIL BEFORE FROM PIPING REMOVAL SAMPLING AT 2 FEET BELOW GRADE. SOIL AFTER IS <br /> FROM A BORING 10' FROM THE PIPING SAMPLE AT 6 FEET BELOW GRADE. GROUNDWATER BEFORE IS FROM <br /> MW 3 IN 10193. GROUNDWATER AFTER IS FROM MW 3 IN 02197_ <br /> IV. Closure <br /> Does completed corrective action protect existing beneficial uses per the Regional Board Basin Plan? (YES) <br /> Does completed corrective action protect potential beneficial uses per the Regional Board Basin Plan?(YES) <br /> Does corrective action protect public health for current land use? (YES) <br /> Site management requirements: NONE <br /> Should corrective action be reviewed if land use changes? (YES) <br /> Monitoring/Vapor wells decommissioned: 0 Number Decommissioned: 0 Number retained: 8 <br /> List enforcement actions taken:. NOR <br /> List enforcement actions rescinded: <br /> V. Local Agency Representative Data <br /> Name: MARGARET LAGORIO Title: SUPERVISING REHS <br /> SITE MITIGATIONILOP UNIT IV <br /> Signature: Date: <br /> Vl. Central Valley Regional Water Quality Control Board (RB) Notification <br /> Date Submitted to R13: Response Date: <br /> RB Staff. PAT ANDERSON Response: <br /> Title: HYDROGEOLOGIST <br /> VII. Additional Comments, Data, etc. <br /> This document and the related CASE CLOSURE LETTER, Shall be retained by the lead agency as part of the official <br /> site file. <br />